The ratio of boys to girls in our class is 4 to 5. If
there are 8 girls, then how many total students are
in the class?

Answers

Answer 1

Answer:

6.4/6

Step-by-step explanation:

Since

4 : 5 = X : 8

Then we know

4/5 = X/8

Multiplying both sides by 8 cancels on the right

8 × (4/5) = (X/8) × 8

8 × (4/5) = X

Then solving for X

X = 8 × (4/5)

X = 6.4

Therefore

4 : 5 = 6.4 : 8


Related Questions

To practice for a competition, Kate swam 710 meters in the pool each day for 3 weeks. How many kilometers did Kate swim in those 3 weeks?

Answers

Answer:

14910 meters

Step-by-step explanation:

3 weeks= 21 days

each day= 710 m

21 days= 710*21

21 days= 14910 m

If adam’s credit card has an apr of 14.63%, what is adam’s balance at the end of june? a. $629.42 b. $629.66 c. $627.27 d. $628.40

Answers

The balance in Adam's account at the end of June which has the credit card with an apr of 14.63% is $627.27.

What is monthly payment?

Monthly payment is the payment which has to paid against the loan amount or the borrowed money calculated with interest rate.

The Adam’s credit card has an Apr of 14.63%,The table below shows his use of that credit card over three months.

Date  Amount ($)  Transaction                       Remaining Balance ($)  4/1      626.45         Beginning balance             626.454/10    37.41            Purchase                              663.864/12    44.50           Purchase                              708.365/3     65.50           Payment                               642.865/16    24.89          Purchase                               667.755/20   104.77         Payment                                 562.986/6      23.60         Payment                                 539.386/10    15.00           Purchase                                554.386/14     51.85           Purchase                               606.23

For the purchase add the previous balance and for payment subtract the previous balance. I have mentioned another column for remaining balance in the above table.

The total of this transaction when multiplied with number of days, we get the total balance, 56498.48.

Now the monthly average balance is,

[tex]m=\dfrac{56498.48}{90}\\m=627.76[/tex]

Thus, the balance in Adam's account at the end of June which has the credit card with an Apr of 14.63% is near to $627.27.

Learn more about the monthly payment here;

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Adam’s balance at the end of June is $629.42.

What is the adjusted balance method?

The adjusted balance method is an accounting method that bases finance charges on the amount(s) owed at the end of the current billing cycle after credits and payments post to the account.

Balance at the end of April = 626.45 + 37.41 + 44.50 = $708.36

Interest levied on $708.36= 708.36* (14.63/12) * 1/100

Interest levied on $708.36 = $8.64

So, balance on May 1st= 708.36+ 8.64 = $717

Balance at the end of May = 717-65.50+24.89-104.77 = $571.62

Interest levied on $571.62 = $571.62 * (14.63/12) * 1/100

Interest levied on  $571.62=$6.97

So, balance on June 1st = $578.59

Balance at the end of June = 578.59-23.60 + 15+51.85 = $621.84

Interest levied on $621.84 = $621.84* (14.63/12) * 1/100

Interest levied on $621.84 =$ 7.58

So balance at the end of the june = 621.84 + 7.58 = $629.42

Therefore, Adam’s balance at the end of June is $629.42.

To get more about the adjusted balance method visit:

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The function h(x) shown is the result of adding two
functions, f(x) and g(x).
Which statement could be used to describe the
functions?
y
2
2
O Both original functions have a domain of (-00,00).
O Both original functions have a domain of [-co, 2).
O The domain of f(x) is [2,00), while the domain of g(x)
is (-0,2).
The domain of f(x) is (-0, 2], while the domain of g(x)
is [2,00)
-10 -8 -6
4
6
8
10
-2.
-6
-8
-10
-12
14
16

Answers

Answer:

The domains of both f(x) and g(x) must be (–∞, ∞).

Step-by-step explanation:

-Ash

:p

The both original functions have a domain of ( -∝ , ∝ )

What are domain and range?

The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we plug an x value in.

The range is the set of outputs of a relation or function. In other words, it's the set of possible y values. Recall that ordered pairs are of the form (x,y) so the y coordinate is listed after the x. The output is listed after the input.

Given data ,

Let the function be represented as f ( x )

Now , the value of f ( x ) is

f ( x ) is a parabolic function where the domain of the function ranges from

And , domain of a parabolic function is all real numbers, which means that the function is defined for every possible input value

Hence , the domain is ( -∝ , ∝ )

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I really need some help. Serious and correct answers please I appreciate it.

Answers

Answer:

A. You need to draw a straight line that increases from left to right. Try and get the same amount of plots on the top and bottom of the line and go through one or two of the plots. Don't connect the dots, though.

B. This scatter plot demonstrates a positive association between a person's height and weight because the trendline increases from left to right. According to this data, as weight increases, so does height. The more someone weighs, the more likely they are to be tall.

In an effort to protect the environment, Steve is trying to get the citizens of his hometown, Yardley, to waste less water. A study indicated that they wasted 75,900 gallons of water last year and 44,022 gallons of water this year. What is the percent of decrease in the amount of water wasted yearly?

Answers

Answer:

42%

Step-by-step explanation:

Water wasted last year = 75,900 gallons

Water wasted this year = 44,022 gallons

Percentage decrease in the amount of water wasted yearly = (Water wasted last year - Water wasted this year) / Water wasted last year × 100

= (75,900 - 44,022) / 75,900 × 100

= 31,878 / 75,900 × 100

= 0.42 × 100

= 42%

Percentage decrease in the amount of water wasted yearly is 42%

In a fruit punch drink, the 3 ingredients are apple juice, orange juice and cranberry juice. If
2
7
of the drink is apple juice and
1
2
is orange juice then write the ratio of cranberry juice to apple juice to orange juice in its simplest form.

Answers

The answer is 3/2 or 1.5/7

R is the midpoint of PQ. PR = 6x + 7 and RQ = 3x + 8, find the length of PQ.

Answers

Answer:

PQ = 18

Step-by-step explanation:

If R is the midpoint of PQ, then PR = RQ

⇒ 6x + 7 = 3x + 8

⇒ 3x = 1

⇒ x = 1/3

So PR = 6x + 7 = 6(1/3) + 7 = 9

and RQ = 3x + 8 = 3(1/3) + 8 = 9

⇒ PQ = PR + RQ = 9 + 9 = 18

Find the product of 6.23 and 9.3 .

Answers

Answer:

57.939

Step-by-step explanation:

6.23 x 9.3 = 57.939
Hope this helps :)

Answer:

The answer is approximately 57.94

Step-by-step explanation:

When you are asked to find the product of something, it means to multiply.

Sum=addition   Difference=subtraction    Product=multiplication    Quotient=division

Hope that helps!

3 workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

Answers

Answer:

7 workers

Step-by-step explanation:

[tex]\frac{workers first time}{workers second time} = \frac{hours second time}{hours first time}[/tex]

[tex]\frac{3}{x} = \frac{12}{28}[/tex]

cross multiply and it becomes

12x = 3x28

12x = 84

x = 84/12

x = 7 workers

Answer

4

Step-by-step explanation:

3/28=x/12

that is 7 and you need to find how many more workers so you subtract

7-3=4

Can anyone please help me

Answers

Answer:

6

Step-by-step explanation:

You have to separate the triangles into two, where you can compare short over long. DC = AB, so DC is the long side in the smaller triangle and AC is the shorter side. DC is similar to AC, and DE is similar to AB. Short over long side formula gives you [tex]\frac{x}{9} =\frac{4}{x}[/tex].

Cross multiply to get [tex]x^2=36[/tex]

Square root on both sides to get [tex]x=6[/tex]

Write an equation for the situation:
A number x decreased by 8 is the same as 20.

Answers

Answer:

x - 8 = 20

Step-by-step explanation:



Ej bisects ZDEF, MZDEJ = 5x +7,
mZJEF = 8x – 8.
What is the measure of

Answers

Step-by-step explanation:

rx7cr7rctcc7ttc7tc7tv7g7tc7tf74fitc7rifrtxr8c74ci8yc8rdurxuec7rc3xurx4d63ufxufxits3663esufcitcitcitcitc8tct8

help please please help me

Answers

Answer:

It should be -1

Step-by-step explanation:

Since y=f(x) and f(x)=2, then you're y=2. So you just have to find (?,2).

A patient has surgery for a knee replacement. Operating room charges $3,286.00, anaesthesia is $1,554.80, the charge for a hospital room for 3 days is $1,952.42 per day, medications total $1,297.59, and miscellaneous charges. THe insurance company pays $10,187.84. What is the balance the patient must pay.

Answers

Answer:

510.82 dollars

Step-by-step explanation:

Answer:

1807.81

Step-by-step explanation:

multiply 1952.42 by 3=5857.26

add the rest of the numbers=11995.65

subtract 10187.84=1807.81

How many numbers are 3 units away from 0?

Answers

Answer:

2

-3 and 3

these are the only numbers that are 3 numbers away from zero

Hope This Helps!!!

Please help if you know the answers!
Choose the equation and the slope of the line that passes through (4, -2) and
is perpendicular to the x-axis,
A. Equation; x = 4
B. Equation; x = -2
C. Slope undefined
D. Slope: 0
E. Equation: y = 4
F. Equation: y = -2

Answers

Answer:a,b,e,f

Step-by-step explanation:

Explain how you can multiply 4($5.97) without paper or calculator by thinking of $5.97 as 6−0.03 and then using the distributive property.

Answers

Answer:

you can can answer with mental math

for ex. 4 x 97 can be broken into 4 x 7 + 4 x 9

and the 5 dollars could be 4 x 5 add them up and your answer should be right

By using distributive property of multiplication over subtraction we got 4 (5.97)  = 23.88 without actually multiplying 4 (5.97) .

What is distributive property of multiplication?

This property states that when a number is multiplied by addition/subtraction of two number is same as multiplying this number with both the numbers individually and then adding/subtracting them.

let a, b, c are three numbers then distributive property of multiplication can be stated as :

a×(b ± c) =(a× b) ± (a ×c)

For Multiplying  4($5.97)

Write 5.97 = 6 -0.03

4 (5.97) =  4* ( 6 -0.03) = (4*6) -(4*0.03) (using distributive property)

(4*6) -(4*0.03) = 24 - 0.12 = 23.88

Therefore without actually multiplying 4 (5.97)  we got 4 (5.97)  = 23.88 by using distributive property of multiplication over subtraction.

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77x10= what 10 x77 77x10

Answers

Answer: 770

Step-by-step explanation:

It would= 10 x 77 and 77 x 10 it=770 because you always add a zero like this.

7 x 10=70

70 x 10=700

700 x 10=7,000

7,000 x 10=70,000

Or another example take 8

8 x 10=80

8 x 100=800

8 x 1,000=8,000

8 x 10,000=80,000

Hope it helps have a great day:)

Julie earned a $1500 bonus at work for doing a good job. She placed part of the money in a regular savings account earning 2.5% annual interest. She placed the remaining amount in a money market account earning 5% interest annually. At the end of the year she earned four times more in the money market account than she did in the regular savings account. How much did Julie invest in the money market account at 5% interest? (Express your answer to the nearest dollar)

Answers

The amount of money Julie invested in the money market account at 5% interest is $600

How to find amount Julie invest in the money market

According to the question;

It follows that the total amount earned is; $1500. andLet, x and y be the initial allocated to savings and market account respectively, then;

x + y = 1500

4 × (0.025 × x) = (0.05 × y)

Therefore;

x = y/2

Therefore, y + y/2 = 1500

2.5y = 1500

y = $600

and

x = $900

Read more on percentages;

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6 friends go to the movies. Tickets cost $12 and each person buys popcorn. They spend $156 altogether. Write and solve an equation to find the cost of one p, popcorn. Be sure to include the equation as part of your answer.

Answers

Answer:

p = 14

Equation:

[tex]156=12x+6p[/tex]

Step-by-step explanation:

Set up the equation:

Let x = # of friends that went to the movies

Let p = cost of 1 popcorn

[tex]156=12(6)+6p[/tex]

[tex]156=72+6p\\84=6p[/tex]

Divide both sides by 6

[tex]p=14[/tex]

#LearnWithBrainly

What is the slope of the line going through (9,7) and (9,-4)

Answers

Answer:

undefined

Explanation:

look at the screenshots


2, 20, 4, 40, 8, 80, 16,
what’s the pattern

Answers

Answer:

each one digit number is becoming a ten digit number

Step-by-step explanation:

need help with thiss

Answers

All sides are equal

Perimeter=Sum of sides

[tex]\\ \sf \Rrightarrow 5(6s^5t-t^3)[/tex]

[tex]\\ \sf \Rrightarrow 30s^5t-5t^3[/tex]

A used car salesperson receives a commission of 1/12 of the sale price for each car he sells would would be sales commission on a car that sold for 15,656

Answers

Answer: The commission would be $1304.66

Step-by-step explanation: Multiply the commission rate times the sale amount.

15656 × 1/12  is the same as 15656÷12

what is the basic numbers of pi

Answers

Answer:

3.14

Step-by-step explanation:

Answer:

3.14

Step-by-step explanation:

Your welcome if I helped plz add me as brainiest!

Find the fourth term of infinite geometric sequence if the sum of the second and the third term is equal to 3 and the sum of the geometric sequence is equal to 8.
The Common Ratio is a rational number.

[tex]|q| \ \textless \ 1 \ \textless \ =\ \textgreater \ \lim q^n = 0\\=\ \textgreater \ S = \frac{a_{1}}{1 - r}\\S = 8\\a_2 + a_3 = 3\\a_4 = ?[/tex]

Answers

Answer:

do you have a picture of the problem

Step-by-step explanation:

solve the following proportion n-5/10 = n+4/2

Answers

Answer:

n = -25/4

Step-by-step explanation:

(n - 5)/10 = (n + 4)/2

10(n + 4) = 2(n - 5)

5(n + 4) = n - 5

5n + 20 = n - 5

4n = -25

n = -25/4

please help me
A. What is the formula for exponential growth?

B. What does each variable mean?

Answers

Answer:

a) f(x) = a(1 + r)x 

Step-by-step explanation:

exponential growth or decay function is a function that grows or shrinks at a constant percent growth rate. The equation can be written in the form f(x) = a(1 + r)x or f(x) = abx where b = 1 + r.

Step-by-step explanation:

A. Exponential growth or decay function is a function that grows or shrinks at a constant percent growth rate. The equation can be written in the form f(x) = a(1 + r)x or f(x) = abx where b = 1 + r.

Dana is planning on taking a two-year leave of absence from her job to pursue a graduate degree. What
balance does she need to have in an annuity that pays 2.4% annual interest in order to receive a monthly
payment of €2100? Give your answer correctly rounded to three significant figures.

Answers

Answer:

THATS DUMB BRUH WORK TO MAKE $$$$$$

Step-by-step explanation:

What is the volume of this right cone?

384π cm^3

691π cm^3

1038π cm^3

2073π cm^3

Answers

Answer:

1206

Step-by-step explanation:

Our formula to find the volume: V = 1/3 πr² h

h = 8

r = 12

π · 12² · 8/3

1206

But within decimals form
1206.37158

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